Split-type proportional valve

Abstract

The invention discloses a split-type proportional valve. The split-type proportional valve comprises a valve body and a filter net and is characterized in that the valve body is of a split-type structure, and consists of an upper valve body and a lower valve body; the upper part of a center hole of the upper valve body is an external joint connection section; the filter net is embedded in the middle of the center hole of the upper valve body; a center hole of the lower valve body is a two-stage step hole with two large ends and a small middle part, the medium-diameter section of the two-stage step hole is a flow limiting section, and the large-diameter section on the lower part of the two-stage step hole is an external joint connection section; when the upper part of the lower valve body is inserted into the lower part of the center hole of the upper valve body, the insertion part is in threaded connection with the lower part of the center hole of the upper valve body, and the center holes of the upper and lower valve bodies are in the same line. The split-type proportional valve is of the split-type structure; the upper and lower valve bodies can be separated if necessary, and the filter net in the center hole of the upper valve body is cleaned; therefore, the filter net is normally used, a defect that the whole proportional valve is abandoned because the filter net cannot be used in the prior art can be overcome, and the aim of reducing cost is fulfilled.

Description

technical field [0001] The invention belongs to the field of valves, and in particular relates to a split proportional valve. Background technique [0002] Such as figure 1 As mentioned above, the traditional proportional valve has an integral structure and is composed of a valve body 1 and a filter screen 2, wherein the center hole of the valve body 1 is a three-stage stepped hole with two large ends and a small middle one, and the middle diameter section is a flow-limiting section , and the upper and lower large-diameter sections are external joint connection sections, and the upper large-diameter section is fixed with a filter screen 2 . [0003] Due to the extremely small aperture of the flow limiting section of the valve body 1, it is easy to be blocked, and the filter screen will be gradually polluted and blocked after a long time. However, the traditional proportional valve has an integral structure, so the filter screen cannot be cleaned, and the proportional valve ...

AI Technical Summary

Problems solved by technology

[0003] Due to the extremely small aperture of the flow limiting section of the valve body 1, it is easy to be blocked, and the filter screen will be gradually polluted and blocked after a long time, while the traditional proportional valve has an integral structure, so the filter screen cannot be cleaned, and the proportional valve can only be scrapped , it will be a waste

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